EP1037699B1 - Filterelement sowie verfahren und klebstoff-auftragvorrichtung zu dessen herstellung - Google Patents
Filterelement sowie verfahren und klebstoff-auftragvorrichtung zu dessen herstellung Download PDFInfo
- Publication number
- EP1037699B1 EP1037699B1 EP98966205A EP98966205A EP1037699B1 EP 1037699 B1 EP1037699 B1 EP 1037699B1 EP 98966205 A EP98966205 A EP 98966205A EP 98966205 A EP98966205 A EP 98966205A EP 1037699 B1 EP1037699 B1 EP 1037699B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adhesive
- pleat
- filter material
- spacers
- application device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
- B01D46/523—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material with means for maintaining spacing between the pleats or folds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/012—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/016—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with corrugated, folded or wound filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0001—Making filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2411—Filter cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2265/04—Permanent measures for connecting different parts of the filter, e.g. welding, glueing or moulding
Definitions
- the invention relates to a filter element according to the preamble of claim 1 and a method of manufacture such as well as an adhesive application device and an arrangement for producing a fluid filter insert with such an adhesive application device.
- Fluid filter elements serve to remove contaminants from a flowing fluid (especially air or technical Gases, but possibly also liquids). Filter elements are currently predominantly used in air filters used which is a nonwoven fabric, in particular made of glass, cellulose or synthetic fibers.
- the filter medium is conventional Filtering the type in question (so-called Minipleats) meandering to essentially parallel Folded walls folded so that a number of over Fold edges adjoining each other, somewhat in the surface curved folds. These are in the inflow area in a small one and not because of the curvature exactly defined angle to the walls of the folding and thereby transversely to the direction of the fold edges of the one to be cleaned Flow against medium.
- Minipleats meandering to essentially parallel Folded walls folded so that a number of over Fold edges adjoining each other, somewhat in the surface curved folds.
- DE 43 45 122 A1 describes a filter insert and a method known for its manufacture, in which on an embossed Filter material of the type mentioned above is not just a thin layer of adhesive to glue the embossed surveys is applied, but an increasing Glue shop that itself at least in sections has a certain height and thus as an additional spacer (in addition to the embossed surveys). With this procedure can be used to filter particles with advantageous properties and create very large fold heights However, the procedure is because of the demanding combination of filter material stamping and controlled adhesive application consuming.
- the invention is based, a simple and Filter element of the generic type which can be produced inexpensively Kind with good fluidic properties and high mechanical stability and a method for To specify the manufacture of this filter element. Farther is to provide an improved adhesive application device be, in particular the production of novel Fluid filter inserts enabled.
- the task is carried out according to its various aspects a filter element with the features of claim 1 or a method with the features of claim 7 and further through an adhesive application device with the Features of claim 11 and an arrangement according to claim 25 solved.
- the invention includes the idea of waiving on depressions embossed in the filter material zigzag, stiffened filter material configuration alone with spacers attached to the filter material with along the web in a predetermined manner variable height to realize.
- the spacers become in particular in the same direction with the narrowing of the cross-section the fold in question towards the sole of the fold or the fold base continuously flatter, or there are between two fold walls two or more separate spacers provided, and a spacer adjacent to the fold base is in each case thinner or flatter than one of these more distant.
- the spacers can be in an advantageous embodiment of the inventive idea with which one particularly high rigidity of the structure is achieved over the larger Part of the length of the fold walls should be formed.
- this is exclusive in the areas where the fold walls have a large distance, an applied adhesive spacer provided while in the fields of Wrinkle bases or soles no spacer available or the adhesive has no appreciable thickness by the amount applied is such that it is in the essentially penetrates into the filter material. If in no adhesive was applied to these areas at all is, the filterable increases in an advantageous manner Area of the filter element.
- the spacers can be dimensioned in this way in their height profile be that a spacer for the desired Total distance between the fold walls ensures by touches an area of the fold wall facing him, in where no other spacer is placed. Execution and arrangement of the individual spacers can also be chosen so that when folding - at least in the fold peak areas - two mutually facing spacers touch and their heights (in connected Condition) add to the local fold spacing to be set.
- Folded walls preferably with both sides or Provide spacers facing surfaces, see above that the fold walls are firmly against adjacent on both sides Support fold walls.
- this is not absolutely necessary; in principle, each can also be glued second pair of adjacent fold walls may be sufficient.
- the spacers are created by applying an adhesive, so the perpendicular to the fold edges, i.e. when applying in the direction of the filter material web or decreasing height advantageous by controlling the pro Time unit or per unit length of the filter material web amount of adhesive emerging from an application nozzle become.
- the amount of adhesive per unit of time can control the cross section accordingly the outlet opening of the applicator become, i.e. specifically when approaching the future Folded lines marking fold lines whose cross section be reduced and enlarged when removed from them.
- variation is possible a corresponding amount of adhesive per unit of time Control of the outlet pressure from the application device be made.
- the applied per unit length of the filter material web Amount of adhesive by varying the relative speed between the material web and the outlet opening Application device can be changed, e.g. additionally during the passage of the filter material web is moved.
- the order quantity can also be controlled by temperature to be influenced.
- Viscosity and thixotropy of the adhesive when applied must be coordinated with the surface properties of the filter material so that a Spreading of the adhesive prevented with a larger order quantity becomes.
- the spacer the glue
- Alternatively or in combination with a quantity-controlled Application can be the adhesive application in the direction the longitudinal extent of the filter material web at least interrupted once and the plotted per unit length Amount of adhesive beyond the break in Direction towards the embossing marking the sole of a fold be chosen lower than on this side of the interruption, i.e. in the wide open part of the fold where the spacer must be higher.
- each application unit has its own metering device has and the dosing devices a common Control device is assigned.
- the dosing device preferably to implement a dosing cycle time of less than 1 s, especially less than 0.2 s.
- the period is the dosing cycle time Repetitive job profile sections understood.
- Dosing cones are formed and in which mechanical, pneumatic, hydraulic, electromagnetic or electromotive actuators with high Response speed for shifting the dosing cone are provided.
- actuators in a essential execution based on mechanical components a cam device and one of the cam devices counteracting bias spring device provided.
- Another preferred embodiment comprises a motor-gear unit, the one in particular with a preprogrammed one Job profile of finely controllable stepper motor may include.
- the order units together a fast-acting pressure control device for Assign control of the adhesive supply pressure.
- the control device is at least one Transducer for a location feature and, if necessary, the Throughput speed of the surface material or a a processing feature creating the same position feature assigned.
- a transducer is in particular by a transport or embossing shaft of a transport and / or Embossing device formed for the sheet material or one those assigned to the angle of rotation detection.
- Control expediently includes the control device a the cam device with the transport or Embossing shaft connecting and synchronizing mechanical Transmission equipment.
- an electronic control has a programmable one Processing unit on the input side with the transducer (or in practice also several transducers) and on the output side with the dosing device and / or the pressure control device is connected.
- a preferred system especially for the production of fluid filter inserts additionally comprises at least one embossing device for the formation of fold edge embossing and if necessary, additional stiffening depressions in an as Filter material trained surface material and means to synchronize the embossing device with the control the adhesive application device so that the local Cross-section of the adhesive traces in a predetermined spatial Assignment to the fold edge embossing and / or Wells stands.
- groups are quasi-less Glue threads without a break on a quasi-endless Filter material web can be applied, it can also be abr separated adhesive aggregates with predetermined in the sequence Height profile are formed.
- the processing unit should be in the interest of a flexible Use of the system for different filter configurations with a short changeover time a profile memory for storing predetermined adhesive trace profiles in assignment on the position of the fold edge embossing and / or the depressions.
- Fig. 1a shows a schematic, not to scale one cuboid in shape
- Filter insert 1 made of a filter fleece 2 the embossing lines or fold edges 2a is folded in a zigzag shape, so that each point between two fold edges 2a Wrinkle walls 2b enclosing angles result.
- Adhesive beads 3 applied.
- the adhesive beads 3 on the two surfaces of the filter fleece 2 laterally offset from one another, in practice, however, an arrangement is preferred the adhesive beads in a lateral alignment with each other ( “Above each other").
- the adhesive aggregates 3 opposite fold walls 2b are (what in the drawing not shown) fused together, whereby in cured state of the adhesive the appropriate Folded walls firmly connected and essentially are rigidly supported against each other and thereby the filter element 1 is mechanically stiff.
- Fig. 1b shows a compared to the embodiment of Fig. 1a modified filter insert 11 with a smaller pleat angle, i.e. with the same fold height, smaller maximum fold spacing.
- the fold walls 12b are each short here Adhesive aggregates 13a, 13b in the opening area of the fold walls (below the fold peaks 12a) and 13c near the Folded sole connected together.
- 1c shows a detail as a further modification from a filter element 21 with a further reduced pleat angle and distance.
- the distance is also in the opening or fold peak area so small that it as well as in the area of the folds by means of the adhesive points 23a, bridged with individual adhesive points 23b that can be directly on the opposite fold wall 22b cling.
- FIG. 2a shows a cross-sectional illustration of the fold arrangement a further filter element 31 in a sectional plane parallel to the longitudinal extent of the filter fleece 32.
- the formation of the adhesive spacer 33 corresponds basically Fig. 1a, but these are different from Version shown there only in every second through fold walls 32b fold formed between fold edges 32a intended.
- the filter material only needs one What surface to be provided with adhesive beads technology simplified and a cost reduction in Manufacturing allowed.
- FIG. 2b shows an alternative embodiment of a filter element 41, in an arrangement similar to FIG. 2a of the filter material 42 - namely with only one-sided fixation that extending between fold edges 42a Folded walls 42b - only the smaller part of the length or height the fold walls with adhesive aggregates 43a and 43b and 43c is provided.
- adhesive aggregates 43a and 43b form a real spacer by adding their heights, while that arranged directly in the pleated sole 42a
- Adhesive point 43c only additionally stabilizing and has a vibration-dampening effect.
- the adhesive aggregate is also on both surfaces of the fold walls possible, then one of Fig. 1b Similar version with fixation of the fold walls on both sides arises.
- Fig. 2c shows a similar to the arrangement of Fig. 2a Filter element 51 made of a filter fleece 52, in which the Folded edges 52a of one (in the figure of the lower) fold edge region by flat extensions 53a of the adhesive aggregates 53 are bridged as to the position of the Fold walls 52b additionally stabilized.
- FIG. 3 is a schematic cross-sectional illustration of a in the outer shape of hollow cylindrical filter insert 61 according to a further embodiment of the invention.
- the hollow cylindrical outer shape causes the alternating Sequence of further folds 61a and narrow folds 61b of the filter fleece 62.
- the arrangement of the in the wide folds 61a placed spacer 63a is similar to that in the cuboid filter insert according to FIG. 2b.
- the difference to this is here in the pleated soles 62a.1 the wide one Wrinkles 61a no glue applied and the fold walls 62b are glued on both sides, being in the tight folds 61b only a thin adhesive layer 63b is provided that extends into the fold sole 62a.2 there.
- the spacers can, as in the above versions, by applying an adhesive with a controlled thickness (Height) with subsequent curing of the (preferably one-component) Be generated adhesive.
- the spacers with that shown in the figures Cross-sectional shape by foaming a corresponding Reaction mixture - for example a quickly processable Two-component mixture based on urethane - too form.
- Prefabricated spacers - for example made of organic or plastic recycling material - on the filter material web to stick on or also during or immediately after folding into the fold package.
- FIG. 4a to 4c show the essential diagrams Steps of forming a zigzag folded minipleat filter element of the structure shown in Fig. 2a and the associated device components in three variants.
- a quasi-endless web of filter material 100 is created via a roller section 101, first of all to an embossing device 102 for embossing the fold lines 103 for the later Convolution fed.
- the embossing device 102 also has a die 102a, an embossing roller 102b with an embossing roller rotation angle sensor 102c.
- the embossed filter material web 100 After there the fold lines 103 - while registering their Relative position on the way of capturing the embossing bar over the angle of rotation sensor 102c - have been impressed, the embossed filter material web 100 'passes through an adhesive application device 104.
- This has a plurality of adjacent application units 104a controllable adhesive discharge per unit of time (of which in only one is shown in the figure) and a control unit 104b and an interface 104c to the embossing device 102 on.
- a hot glue is applied by means of the application units 104a ("hot melt") or foam adhesive or an ordinary one air-drying adhesive under precise control the control unit 104b to predetermined sections of the material web 100 with predetermined cross-sectional and in particular Height profile for the formation of different adhesive beads 105.1 to 105.3 plotted.
- application units 104a hot melt
- foam adhesive or an ordinary one air-drying adhesive under precise control the control unit 104b to predetermined sections of the material web 100 with predetermined cross-sectional and in particular Height profile for the formation of different adhesive beads 105.1 to 105.3 plotted.
- side by side arranged order units will be one Plurality of at the same height and with the same height profile adjacent adhesive beads formed what cannot be seen in the side view.
- the control unit 104b is used to specify the correct position and the predetermined height profile of the adhesive beads relative to the position of the fold lines 103 above the interface 104c the signal of the embossing roller rotation angle sensor 102c fed.
- Control signals for setting the outlet cross-section of the application units The control unit directs 104a for the order quantity control from the predetermined (possibly by not shown here conventional sensors monitored online) throughput speed the filter material web 100 'or rotational speed of the embossing rollers and in a characteristic curve memory 104d programmed data on the adhesive and Filter material properties and the desired filter geometry from.
- every second fold line 103 adhesive points 105.1 and on the neighboring ones Folded wall sections adhesive beads 105.2 and 105.3 plotted with a predetermined height increase.
- the corresponding stored control characteristic for a dosing cycle that for a fold unit of the filter material predetermined and for all fold units in the same way repeated use therefore includes for this execution of the glue traces sections where the glue dispensing is zero per unit of time (Closing times of all order units 104a), sections, in which this has a fixed value ("constant opening times") and sections in which it rises steadily or drops (“variable opening times"). But there are also Execution of the adhesive traces without any interruption possible, where of course no closing times are provided are.
- the characteristic curve is not complete corresponds to the height profile of the adhesive traces to be generated, but the dynamic behavior of the adhesive invoice after leaving the order opening represents, in particular through its physicochemical parameters and to some extent through the filter material surface is determined. So with one stands for certain Preferred embodiments of the invention - gel-like Consistency and relatively high surface tension the filter material the first derivative of the amount of adhesive according to the time in an almost linear relationship to the given one Height increase of the adhesive traces, while with soft pasty Consistency and / or lower surface tension there is a rather quadratic dependency.
- the setting the characteristic curve for the specific application is usually based on a series of experiments or simulation calculations the specialist has no need to go out further possible.
- a filter geometry of the type shown in Fig. 1 would be the opening sections of the characteristic curve mentioned above in at least two areas with different, but within the ranges of constant first derivative of the Glue amount divided by time.
- the embossed and with the adhesive aggregates 105.1 to 105.3 provided filter material web 100 "to a folding station 106, where they are on a transport device 106a the fold lines 103 is folded such that the adhesive beads 105.2 and 105.3 load-bearing fold walls 100.1 " and 100.2 "face each other and the adhesive beads be brought into contact with each other. In this condition the adhesive is cured.
- This is in the figure - in case of using a hot glue - by one Cooling fan 106b symbolizes, but can - depending on the type of used adhesive - also through a two-component reaction or by air humidity or by simple Cool the hot glue.
- Fig. 4b is a modification of the method and System shown in Fig. 4a. Those corresponding to Fig. 4a Components and process steps are not described again.
- the design of the folding station 106 'differs which here has two transport devices 106a.1' and 106a.2 'running at different speeds v 1 , v 2 .
- Folding at a lower speed v 1 initially causes the filter material 100 "to be tightly folded, in which the adhesive aggregates 105.2 and 105.3 are fused together with a certain amount of pressure and the adhesive point 105.1 is pressed into the fold sole at the fold line 103 a primary fold package 107 with a small fold distance, which has not yet been fixed due to the fact that the adhesive has not yet cured.
- FIG. 4c shows a system modified compared to FIG. 4a with a purely mechanical controller 104 'that essentially one engaged with the embossing shaft 102b Timing belt drive 104c 'and one driven by this Camshaft 104b ', which on the application units 104a acts mechanically.
- a separate transducer for the angular position of the embossing shaft can be found here omitted because the position synchronization of the adhesive tracks with the fold edges through the initial adjustment of the toothed belt drive and the cam control shaft he follows.
- the other system components correspond the system shown in Fig. 4a and are not here described again.
- a compression spring 46 which is supported against a plate 44b on the metering rod 44 and thus upwards - i.e. into the application nozzle 42 fully releasing position - preloaded.
- a cam device presses against the upper end of the metering rod 47, the metering rod against the biasing force the compression spring 46 presses down and in cooperation the position of the dosing cone with the pressure spring 44a relative to the application nozzle 41a and thus the effective one Cross section of the latter controls. This will ultimately the amount of adhesive dispensed per unit of time and in particular the local height of the adhesive track 105 on the Filter material 100 controlled.
- the application unit 40 ' differs from the one described above by a pneumatic drive by means of pressure-controlled compressed air supply via a Compressed air supply line 47 'in a pressure chamber 45'.
- This will - in addition to the wall of the application unit - by a Plate 44b from Fig. 4a similar, but against the inner wall sealed pressure plate 44b ', which here upper end of the (so far modified) metering rod 44 ' forms.
- the position of the dosing cone 44a 'relative to Application nozzle 41a and the effective cross section of the latter - and thus the amount of adhesive discharged per unit of time - are determined by the ratio of the spring preload determined for the momentary pressure in the pressure chamber 45 '.
- Pressure fluid can be used, especially a hydraulic one Drive.
- the execution of an application unit is basically similar 40 "according to FIG. 5c, in which the Place the compressed air control according to Fig. 4b an electromagnetic Position control of the metering rod 44 "via a Magnetic coil 47 “occurs, which is a permanent magnetic engages upper section 44b "of the metering rod 44".
- the application unit 40 '"according to FIG. 5d is - similar to 5a - mechanically controlled, and by a stepper motor 47 “', the metering rod 44 "'over a fine thread 44b'" at the upper end accordingly drives a pre-stored step sequence program.
- a stepper motor 47 "' the metering rod 44 "'over a fine thread 44b'" at the upper end accordingly drives a pre-stored step sequence program.
- an optional intermediate gear not shown
- a back pressure spring arrangement is not necessary in this version.
- the adhesive is fed to the application units preferably in a constant pressure system with a Limit pressure controlled feed pump, its delivery capacity is significantly larger than the maximum current order quantity all order units together.
- the application units according to FIGS. 5a to 5c enable appropriate shaping of the dosing cone and the nozzle inner wall a temporary increase in order printing at the outlet opening opposite the supply pressure or the average adhesive chamber internal pressure through the dosing element, i.e. a forced ejection of adhesive, in the sections of the dosing cycle in which a high altitude the trace of adhesive is required. This can be due to the possible reduction of the supply pressure energy savings and possibly a higher accuracy of the adhesive application can be achieved in the middle height range.
- FIG. 6a and 6b is in two different positions
- a schematic version of a modified version an application unit 50 shown, which is advantageous Include the formation of adhesive traces 105a and 105b approximately constant width, but variable height on the Filter material 100 allows.
- the application unit 50 has a nozzle 51 with a rectangular cross section and instead of Dosing cone a correspondingly prismatic shaped dosing element 52 on that the cross section of the nozzle 51 of one edge of the rectangle is narrowed asymmetrically.
- the metering element 52 is also at a constant distance from continuous filter material 100 - in particular this sliding touching and if necessary defined depressing - kept while changing the order cross section by moving the nozzle shell relative to the dosing element and to the filter material surface.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtration Of Liquid (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
Claims (25)
- Filterelement (1; 21; 31; 41; 51; 61), insbesondere in quaderförmiger oder hohlzylindrischer Außenform, mit einer Anzahl von in kontinuierlicher Faltung jeweils zwischen Faltenkanten (2a; 12a; 22a; 32a; 42a; 52a; 62.a1, 62.a2; 103) angeordneten ebenen Faltenwänden (2b; 12b; 22b; 32b; 42b; 52b; 62b; 11.1". 100.2") aus fluiddurchlässigem Filtermaterial (2; 212; 22; 32; 42; 52; 62; 100), wobei mindestens in einem Abschnitt zwischen mindestens jedem zweiten Paar benachbarter Faltenwände diese verbindende und gegeneinander abstützende Abstandshalter (3; 13a-c; 23a, 23b; 33; 43a-c; 53; 63a, 63b; 1051. bis 105.3) vorgesehen sind, die nicht aus dem Filtermaterial bestehen,
dadurch gekennzeichnet, daß
die Abstandshalter mit sich in Richtung senkrecht zu den Faltenkanten ändernder Höhe,
welche gleichsinnig mit der Querschnittsverengung der betreffenden Falte in Richtung auf die Faltensohle bzw. den Faltengrund hin kontinuierlich flacher werden, auf dem ebenen Filtermaterial gebildet sind und/oder in Richtung senkrecht zu den Faltenkanten jeweils mindestens zwei Abstandshalter mit unterschiedlicher Höhe auf dem ebenen Filtermaterial gereiht gebildet sind derart, daß durch Berührung der Abstandshalter mit der gegenüberliegenden Faltenwand oder einem auf dieser angeordneten Abstandshalter eine zickzackförmige Faltenanordnung gebildet ist. - Filterelement nach Anspruch 1, dadurch gekennzeichnet, daß die Abstandshalter (3; 13a-c; 23a, 23b; 33; 43a-c; 53; 63a, 63b; 105.1 bis 105.3) durch ausgehärtete Klebstoffaggregate gebildet sind.
- Filterelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sich über den größeren Teil der Filtermateriallänge zwischen den benachbarten Faltenkanten (2a; 32a; 52a) erstreckende Abstandshalter (3; 33; 53) vorgesehen sind, die in gleichem Maß mit der Querschnittsverengung einer Falte in Richtung auf diejenige Faltenkante hin kontinuierlich flacher wurden, die die über den Abstandshalter miteinander verbundenen Faltenwände (2b; 32b; 52b) gemeinsam haben.
- Filterelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sich über den kleineren Teil der Filtermateriallänge zwischen den benachbarten Faltenkanten erstreckende Abstandshalter (13a, 13b; 23b; 43a, 43b; 63a; 105.2, 105.3) in demjenigen Bereich der Faltung vorgesehen sind, in dem die Faltenwände (12b; 22b; 42b; 62b; 100.1". 100.2") großen Abstand voneinander aufweisen.
- Filterelement nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Abstandshalter jeweils im wesentlichen unmittelbar an einer vorgeprägten Faltenkante und von dieser begrenzt angeordnet sind.
- Filterelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Filtermaterial (2; 12) auf aneinander angrenzenden Faltenwänden in alternierender Anordnung nach beiden Seiten hin ausgerichtete Abstandshalter (3; 13a-c) aufweist derart, daß die Faltenwände (2b; 12b) sich beidseitig über Abstandshalter gegen benachbarte Faltenwände abstützen.
- Verfahren zur Herstellung eines Filterelementes nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß
eine Bahn des Filtermaterials (100) nur mit die Lage der Faltenkanten vorbestimmenden linearem Einprägungen (103) versehen wird,
danach auf mindestens einen Teil der sich zwischen benachbarten Einprägungen erstreckenden ebenen Faltenwandbereiche Abstandshalter (105.1 bis 105.3) mit unterschiedlicher und/oder sich in Längsrichtung der Filtermaterialbahn ändernder Höhe aufgebracht werden und
die Materialbahn an den die Faltenkanten bildenden Einprägungen zickzackförmig gefaltet wird, wodurch die Abstandshalter mit der jeweils gegenüberliegenden Faltenwand oder jeweils einem auf dieser vorgesehenen weiteren Abstandshalter in Kontakt gebracht werden. - Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß das Aufbringen der Abstandshalter (105.1 bis 105.3) als mengengesteuerter Klebstoffauftrag (104) auf die Materialbahn (100) erfolgt und während und/oder nach der Faltung (106a) eine Aushärtung (106b; 106b') des Klebstoffs ausgeführt wird.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, daß der Klebstoffauftrag derart gesteuert wird, daß Klebstoffaggregate (105.1 bis 105.3) mit in Längsrichtung der Materialbahn ab- bzw. zunehmender Höhe und/oder aufeinanderfolgend Klebstoffaggregate unterschiedlicher Höhe aufgetragen werden.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß die Höhe der Klebstoffaggregate über die Variation der pro Zeiteinheit aus einer Auftragsvorrichtung (104a) ausgegebenen Klebstoffmenge und/oder der momentanen Relativgeschwindigkeit zwischen Auftragsvorrichtung und Filtermaterialbahn (100) und/oder durch eine Aufweitung der Falten (106a.2') nach einem primären Faltschritt (106a.1') verändert wird.
- Klebstoff-Auftragvorrichtung (104; 104') zum Auftrag von Klebstoffspuren (3; 105; 105.1 bis 105.3; 105a, 105b) auf ein durchlaufendes flächiges Filtermaterial (2; 100) mit vorbestimmter Periodizität, mit einer Mehrzahl von gleichartigen Auftrageinheiten (104a; 40; 40'; 40"; 40'"; 50), denen mindestens eine Dosiereinrichtung (104b; 104b'; 47; 47'; 47"; 47'"; 52) zur Einstellung der pro Zeiteinheit aus den Auftrageinheiten ausgetragenen Klebstoffmenge zugeordnet ist, wobei der Dosiereinrichtung oder den Dosiereinrichtungen eine mit vorbestimmter Dosierzykluszeit betriebene Steuereinrichtung (102c, 104b, 104d; 104c') zur für alle Auftrageinheiten gleichlaufenden zeitabhängigen Einstellung der ausgetragenen Klebstoffmenge gemäß einer stetige Anstiegsbereiche oder eine stetige Einhüllende umfassenden Auftrag-Kennlinie zugeordnet ist derart, daß die Auftrageinrichtungen mit durch die Dosierzykluszeit definierter Periodizität identische Klebstoffspuren mit durch die Auftrag-Kennlinie und die Klebstoff- und Filtermaterialeigenschaften vorbestimmtem Höhenanstieg erzeugen,
dadurch gekennzeichnet, daß die Auftrageinheiten (104a; 40; 40'; 40"; 40' "; 50) eine Düse oder Nadel mit einem relativ zur Austrittsöffnung längs der Düsenoder Nadelachse gesteuert verschieblichem Dosierelement (44a; 44a'; 44a"; 44a' "; 52) aufweisen. - Klebstoff-Auftragvorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß jede Auftrageinheit (104a; 40; 40'; 40"; 40'") eine Dosiereinrichtung (104b; 104b'; 47; 47' ; 47" ; 47'") aufweist und den Dosiereinrichtungen eine gemeinsame Steuereinrichtung (102c, 104b, 104d; 104c') zugeordnet ist.
- Klebstoff-Auftragvorrichtung nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß die Dosiereinrichtung (104b; 104b'; 47; 47'; 47"; 47'"; 50) zur Realisierung einer Dosierzykluszeit von unter 1 s, insbesondere von unter 0,2 s, ausgelegt ist.
- Klebstoff-Auftragvorrichtung nach einem der Ansprüche 11 bis 13 dadurch gekennzeichnet, daß die Düse oder Nadel einen konisch ausgebildeten Klebstoffaustrittsabschnitt (41a) und das Dosierelement (44a; 44a'; 44a") einen Dosierkegel mit einem gegenüber dem Düsen- oder Nadelkonus geringfügig kleineren Kegelwinkel aufweist.
- Klebstoff-Auftragvorrichtung nach einem der Ansprüche 11 bis 14, dadurch gekennzeichnet, daß das Dosierelement (52) konstanten Abstand zur Filtermaterialoberfläche (100) aufweist, insbesondere diese nahezu berührt, und der Abstand der Austrittsöffnung der Düse oder Nadel (50) zur Filtermaterialoberfläche veränderlich ist.
- Klebstoff-Auftragvorrichtung nach einem der Ansprüche 11 bis 15, dadurch gekennzeichnet, daß den Auftrageinheiten (104a; 40; 40'; 40"; 40'"; 50) mechanisch, pneumatisch, hydraulisch oder elektromagnetisch wirkende Betätigungsmittel (46, 47; 47"; 47"') zur Verschiebung des Dosierelements (44a; 44a'; 44a"; 44a"') oder der Austrittsöffnung zugeordnet sind.
- Klebstoff-Auftragvorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß die Betätigungsmittel eine Nokkeneinrichtung (47) und eine der Nockeneinrichtung entgegenwirkende Vorspann-Federeinrichtung (46) aufweisen, wobei die Nockeneinrichtung eine entsprechend der Kennlinie geformte Steuerkurve umfaßt.
- Klebstoff-Auftragvorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß die Betätigungsmittel eine Motor-Getriebe-Einheit (44a'", 47"'), insbesondere eine Anordnung aus einem Schrittmotor und einer Gewinde- oder Zahnstange, umfassen.
- Klebstoff-Auftragvorrichtung nach einem der Ansprüche 15 bis 18, dadurch gekennzeichnet, daß die Betätigungsmittel (46, 47; 47", 47'") zur kurzzeitigen Erzeugung eines den Zuleitungsdruck des Klebstoffs übersteigeden Auftragdruckes an der Austrittsöffnung ausgebildet sind.
- Klebstoff-Auftragvorrichtung nach einem der Ansprüche 11 bis 19, dadurch gekennzeichnet, daß den Auftrageinheiten (40') gemeinsam eine schnellwirkende Drucksteuereinrichtung zur Steuerung des Klebstoff-Zuleitungsdrucks zugeordnet ist.
- Klebstoff-Auftragvorrichtung nach einem der Ansprüche 11 bis 20, dadurch gekennzeichnet, daß eingangsseitig mit der Steuereinrichtung mindestens ein Aufnehmer (102b; 102c) für die Position eines für den Klebstoffauftrag relevanten, insbesondere den aktuellen Startpunkt der Dosierzykluszeit bestimmenden, Punktes auf dem Filtermaterial oder einen zusätzlichen Schritt der Bearbeitung desselben kennzeichnende Größe und/oder die Durchlaufgeschwindigkeit des Filtermaterials (2; 100) verbunden ist.
- Klebstoff-Auftragvorrichtung nach Anspruch 21, dadurch gekennzeichnet, daß der Aufnehmer durch eine Transport- oder Prägewelle (102b) einer Transport- und/oder Prägeeinrichtung (102) für das Filtermaterial (2; 100) gebildet oder einer solchen zugeordnet ist.
- Klebstoff-Auftragvorrichtung nach Anspruch 17 und 22, dadurch gekennzeichnet, daß die Steuereinrichtung eine die Nockeneinrichtung mit der Transport- oder Prägewelle verbindende und synchronisierende mechanische Übertragungseinrichtung (104c') umfaßt.
- Klebstoff-Auftragvorrichtung nach einem der Ansprüche 21 bis 23, dadurch gekennzeichnet, daß die Steuereinrichtung eine programmierbare Verarbeitungseinheit (104b) aufweist, die eingangsseitig mit dem Aufnehmer (102b; 102c) und einem Kennlinienspeicher (104d) zur Speicherung vorbestimmter Auftrag-Kennlinien zur Ausführung einer Mehrzahl von Klebstoffspurprofilen und ausgangsseitig mit der Dosiereinrichtung (104a) und/oder der Drucksteuereinrichtung verbunden ist.
- Anordnung zur Herstellung eines Fluidfiltereinsatzes mit einer Klebstoff-Auftragvorrichtung nach einem der AnSprüche 11 bis 24, gekennzeichnet durch eine Prägevorrichtung (102) zur Bildung von Faltenkanten-Einprägungen (103) und/oder aussteifenden Vertiefungen in dem Filtermaterial und Mittel (102c, 104c; 102b, 104c') zur Synchronisierung der Prägevorrichtung mit der Steuerung der Klebstoff-Auftragvorrichtung (104; 104') zur Erzeugung der Klebstoffspuren (3; 105; 105.1 bis 105.3) mit einem lokalen Querschnitt in vorbestimmter räumlicher Zuordnung zu den Faltenkanten-Einprägungen (103) und/oder Vertiefungen und mit durch deren Abstand vorgegebener Dosierzykluszeit.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19755466 | 1997-12-03 | ||
DE19755466A DE19755466A1 (de) | 1997-12-03 | 1997-12-03 | Filterelement |
DE29807580U DE29807580U1 (de) | 1997-12-03 | 1998-04-20 | Klebstoff-Auftragvorrichtung |
DE29807580U | 1998-04-20 | ||
PCT/DE1998/003615 WO1999028012A1 (de) | 1997-12-03 | 1998-12-01 | Filterelement sowie verfahren und klebstoff-auftragvorrichtung zu dessen herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1037699A1 EP1037699A1 (de) | 2000-09-27 |
EP1037699B1 true EP1037699B1 (de) | 2003-04-02 |
Family
ID=26042430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98966205A Expired - Lifetime EP1037699B1 (de) | 1997-12-03 | 1998-12-01 | Filterelement sowie verfahren und klebstoff-auftragvorrichtung zu dessen herstellung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1037699B1 (de) |
JP (1) | JP2001524373A (de) |
AT (1) | ATE235951T1 (de) |
CA (1) | CA2312825A1 (de) |
WO (1) | WO1999028012A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10019505A1 (de) * | 2000-04-19 | 2001-10-31 | Jacobi Systemtechnik Gmbh | Fluidfilterelement und Verfahren zu dessen Herstellung |
DE10025141C2 (de) * | 2000-05-20 | 2002-06-13 | Karlsruhe Forschzent | Filterelement |
DE10112837A1 (de) * | 2001-03-16 | 2002-10-02 | Jacobi Systemtechnik Gmbh | Verfahren und Vorrichtung zur Herstellung eines Fluidfilterelementes |
DE10112839A1 (de) * | 2001-03-16 | 2002-09-26 | Jacobi Systemtechnik Gmbh | Verfahren und Anordnung zur Herstellung eines Fluidfilterelementes |
JP4733340B2 (ja) * | 2003-04-24 | 2011-07-27 | 日本エアー・フィルター株式会社 | 折込み型エアフィルタ及びその製造方法 |
WO2006011862A1 (en) | 2004-06-24 | 2006-02-02 | Camfil Farr, Inc. | Pleated air filter with reverse pulsating air flow cleaning |
US7235115B2 (en) | 2004-07-09 | 2007-06-26 | 3M Innovative Properties Company | Method of forming self-supporting pleated filter media |
JP2007054718A (ja) * | 2005-08-23 | 2007-03-08 | Nippon Muki Co Ltd | エアフィルタ用パックの製造方法及びエアフィルタ |
JP5004694B2 (ja) * | 2007-06-29 | 2012-08-22 | 日本無機株式会社 | エアフィルタ用フィルタパック及びそれを用いたエアフィルタ |
CA2743928C (en) | 2008-11-24 | 2017-12-05 | Camfil Ab | Truncated cone-shaped pleated filter medium having distance elements |
JP5466853B2 (ja) | 2008-12-25 | 2014-04-09 | 日本無機株式会社 | プリーツ型エアフィルタパック及びそれを用いたエアフィルタ |
DE102009040202B4 (de) * | 2009-09-07 | 2015-10-01 | Mann + Hummel Gmbh | Filter |
JP2012115809A (ja) * | 2010-12-03 | 2012-06-21 | Midori Anzen Co Ltd | フィルタ |
JP6043590B2 (ja) * | 2012-10-30 | 2016-12-14 | 日東電工株式会社 | フィルタ濾材およびフィルタユニット |
JP6209393B2 (ja) * | 2013-08-21 | 2017-10-04 | 日東電工株式会社 | フィルター濾材 |
CN105764594A (zh) | 2013-12-05 | 2016-07-13 | 曼·胡默尔有限公司 | 具有过滤折箱的过滤元件 |
DE102015006355A1 (de) * | 2015-05-19 | 2016-11-24 | Mann + Hummel Gmbh | Filterelement mit Filterbalg |
JP6808562B2 (ja) * | 2017-04-05 | 2021-01-06 | 株式会社エフテック | プリーツタイプフィルタ用スペーサ |
DE102018103157A1 (de) * | 2018-02-13 | 2019-08-14 | Camfil Apc Gmbh | Geteilte Strömungsleitvorrichtung, Bausatz aus Grundkörper und Endstück einer Strömungsleitvorrichtung, Filteranlage und Verfahren zum Reinigen |
JP7180107B2 (ja) * | 2018-04-26 | 2022-11-30 | 株式会社アイシン | 塗布装置およびロータの製造方法 |
JP7370695B2 (ja) * | 2018-10-17 | 2023-10-30 | 日本無機株式会社 | フィルタパック、及びエアフィルタ |
DE102019115568A1 (de) | 2019-06-07 | 2020-12-10 | Mann+Hummel Gmbh | Filterelement und Filtersystem |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5236480A (en) * | 1989-01-05 | 1993-08-17 | Camfil Ab | Air filter for workstations and methods of making and using such air filter |
DE4345122A1 (de) * | 1993-12-30 | 1995-07-06 | Detroit Holding Ltd | Verfahren zur Herstellung eines Filtereinsatzes |
DE19713238A1 (de) * | 1997-03-29 | 1998-10-01 | Vorwerk Co Interholding | Filterelement aus einem im wesentlichen biegeschlaffen Werkstoff und Verfahren zur Herstellung eines zick-zackförmig gefalteten Filterelementes |
-
1998
- 1998-12-01 AT AT98966205T patent/ATE235951T1/de not_active IP Right Cessation
- 1998-12-01 EP EP98966205A patent/EP1037699B1/de not_active Expired - Lifetime
- 1998-12-01 JP JP2000522987A patent/JP2001524373A/ja not_active Withdrawn
- 1998-12-01 CA CA002312825A patent/CA2312825A1/en not_active Abandoned
- 1998-12-01 WO PCT/DE1998/003615 patent/WO1999028012A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP1037699A1 (de) | 2000-09-27 |
WO1999028012A1 (de) | 1999-06-10 |
ATE235951T1 (de) | 2003-04-15 |
JP2001524373A (ja) | 2001-12-04 |
CA2312825A1 (en) | 1999-06-10 |
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